| 不同形式混凝土框架的网架杆件受力影响研究 |
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| 引用本文： | 孟维华,王大军.不同形式混凝土框架的网架杆件受力影响研究[J].甘肃科学学报,2012(3):116-119. |
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| 作者姓名： | 孟维华 王大军 |
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| 作者单位： | 甘肃省建筑设计研究院,甘肃兰州730030 |
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| 摘 要： | 提出对同一网架不同混凝土框架结构的计算模型,通过有限元软件整体建模,分析了上部网架结构杆件的内力比较.工程实例证明其上部网架不变时,杆件应力随下部结构刚度的变化而重新分布,杆件应力最大差值达23%.为类似建筑工程提供了参考依据.
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| 关 键 词： | 网架 组合结构 整体建模 杆件应力 |
The Variation of Stresses in Space Grid Structure at Different Concrete Frames |
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| MENG Wei-hua,WANG Da-jun.The Variation of Stresses in Space Grid Structure at Different Concrete Frames[J].Journal of Gansu Sciences,2012(3):116-119. |
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| Authors: | MENG Wei-hua WANG Da-jun |
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| Institution: | (Gansu Architectural Design and Research Institute, Lanzhou 730030, China) |
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| Abstract: | A space grid structure at three different concrete frames is modeled and analyzed by the finite element software. The stresses of members of the structure are compared and we find out that the grid structure has a great impact on the concrete frames. When the superstructure is set, the stresses will not in- crease or decrease totally, but as the changing stiffness of the frame increases, they will redistribute them- selves with the variation. Therefore an overall modelling should be considered for the safety of the struc- ture. |
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| Keywords: | space grid structure concrete frame composite structure overall analysis |
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